如何给新生代管理者充电

新生代企业高级经营管理者剖析 如果把20世纪七八十年代改革开放之初应运而生的一代企业高级经营管理者(包括国有企业和非公有制企业)视为老一批企业家的话,如海尔集团的张瑞敏,联想集团的柳传志、长虹集团的倪润峰、万向集团的鲁冠球等就是杰出代表,那么20世纪末21世纪初又一批新生的企业高级经营管理者崭露头角,他们将成为新世纪振兴中国企业的脊梁。     

唐代上层社会妇女婚姻地位探析

唐代上层社会妇女的婚姻生活仍然局限在择偶不自主、生育无节制的传统樊篱内,且忍受着一夫一妻多妾制给女性心灵带来的深刻痛苦,并未如人们想象的那样开放、自由,而且由于从一而终的封建伦理道德对心灵的禁锢,虽然政府对离婚和再嫁有了宽松规定,也并未有多少人身体力行。     

过二硫酸铵与硫代硫酸钠反应的热力学和动力学

从热力学和动力学两方面，讨论了S2O8^2--S2O3^2-I^-系统中，S2O8^2-不与S2O3^2-直接发生反应的原因。     

幂零群的若干充分条件

设G为有限群，a是G的一个对合自同构，若O2（G）∈Sy|2G且a在G／O2（G）上诱导一个无不动点的自同构，那么O2（G）在G中有a-不变的补子群H，并且在某些条件下G是幂零群。     

Activity of metalloproteinases and adiponectin in obese patients— a possible factor of incisional hernias after bariatric procedures

Purpose

Metalloproteinases are a key component of the pathogenesis of abdominal hernias. Obesity is considered a risk factor in herniogenesis and hernia recurrence. The aim of this study was to evaluate the serum concentrations of metalloproteinase-2 (MMP-2), MMP-9, MMP-13, and adiponectin in morbidly obese and nonoverweight controls.

Materials and methods

The participants were recruited from among patients undergoing bariatric and non-bariatric surgery and divided into two groups: I (body mass index (BMI)≥35 kg/m², n=40) and II (BMI<25 kg/m², n=30). Serum concentrations of MMP-2, MMP-9, MMP-13, and adiponectin were measured using enzyme-linked immunosorbent assay (ELISA).

Results

A statistically significant difference between groups was observed for MMP-2 concentration. The median MMP-9 concentration was higher in the obese group, but the difference was not statistically significant. Median MMP-13 concentrations did not differ between groups. Serum adiponectin concentration was insignificantly higher in the non-obese group.

Conclusions

The elevated serum MMP-2 and MMP-9 concentrations in obese individuals may be related to the higher incidence of incisional hernias in this population.

     

The elusive nature of whole system improvement in education

Whole system improvement—where the vast majority of schools improve—is difficult to achieve. Some jurisdictions use what turns out to be ‘wrong’ policy drivers like testing and evaluation. Rather, success turns out to depend on changing the culture of schools and their relationship to the infrastructure of policies and regulation. I examined the six cases studies in the light of whole system change criteria. Two of the case studies, South Africa and India, represent limited but useful examples in that they focus on basic skills like literacy. A second set of two studies, Escuela Nueva and LCP in Mexico, represent strong examples of how bottom up strategies can spread to significant levels. The final two, Long Beach in the US and Ontario, are strong examples of how deep change can be accomplished by focusing on a few core priorities and then building a culture over a number of years to support and sustain the changes. The paper then draws conclusions about the conditions that will be required for large scale change to occur.     

一种用于宽动态范围上的高精度散射测量的标准方法

The co-effect of transmitted power fluctuation and system nonlinearity produce deviations in scatterometer measurement results . An internal calibration method to deal with this problem is proposed. The method can result in more precise scatterometric measurements in a wide range. The basic principle of the method is combining real-transmitted-power detection with the calibration of system nonlinearity. A practical scheme to implement the method is also presented, which is developed based on a special designed mechanism of a microwave radiometer-scatterometer combined system.     

浅述模块辅导法--兼谈《线性代数》课程的教学改革

本文论述了模块辅导法的基本理论与基本原则，并对《线性代数》课程的模块辅导进行了初步的探讨。     

构建高职实践教学体系的基本思路

本文在界定实践教学体系含义的基础上,阐述了实践教学体系的构成要素、逻辑起点,提出了构建实践教学体系理论结构的基本思路。